Type PTO Series Thermometrics PTC Thermistors Description Thermometrics PTO series consists of a range of radially-wire bare PTC disc thermistors. Features Applications Low cost solid state sensor Current regulation Available in a broad range of resistances, Circuit protection transition temperatures and voltage ratings Temperature measurement and control Exhibits large positive increases in resistance with temperature Resistance/temperature characteristic is infinitely repeatable and has no hysteresis associated with its action Proven quality and reliability over many years of manufacturing Amphenol Advanced SensorsOperating Part Number Replacement for R 25C Switch A (max) B (max) C (ref) D (ref) L (min) Voltage, (30%) Temperature, mm mm mm mm mm V T max b 12 YQS5893PTO Y S5893PTO (RL5305-2.5-110-12-PTO) 2.5 120C 15.24 4.06 5.0 0.6 25 12 YQS5898PTO Y S5898PTO (RL3005-25-110-12-PTO) 25 120C 8.89 3.81 5.0 0.6 25 25 YQS5745PTO Y S5745PTO (RL3006-50-30-25-PTO) 50 43C* 8.89 3.81 5.0 0.5 25 25 YQS5749PTO Y S5749PTO (RL3006-50-80-25-PTO) 50 80C 8.89 3.81 5.0 0.5 25 25 YQS5750PTO Y S5750PTO (RL3006-50-90-25-PTO) 50 90C 8.89 3.81 5.0 0.5 25 25 YQS5751PTO Y S5751PTO (RL3006-50-100-25-PTO) 50 100C 8.89 3.81 5.0 0.5 25 120 YQS5917PTO Y S5917PTO (RL6010-20-120-120-PTO) 20 120C 16.51 5.84 8.38 0.8 38.1 120 YS5918PTO RL5510-25-60-120-PTO 25 60C 15.24 5.59 8.38 0.8 38.1 120 YS5921PTO RL2510-200-110-120-PTO 200 120C 7.62 5.08 3.81 0.6 38.1 240 YQS5925PTO Y S5925PTO (RL6015-100-120-240-PTO) 100 120C 16.51 6.86 8.38 0.8 38.1 240 YQS5930PTO Y S5930PTO (RL3020-3000-100-240-PTO) 3K 110C 8.89 7.87 6.35 0.8 25 480 YQS5934PTO Y S5934PTO (RL3020-5K-100-480-PTO) 5K 102C 8.89 7.62 6.35 0.8 25 *Resistance = 2 x Resistance at 25C Mechanical Specifications Electrical Specifications Ambient Temperature Range At Storage: -25 to +155C At Maximum Voltage: +10 to +55C Construction Bare ceramic disc Thick silver film electrodes Uninsulated leadwires Terminations Straight type, tin coated copper wire L ref www.amphenol-sensors.com Amphenol 2014 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice. Other company names and product names used in this document are Advanced Sensors the registered trademarks or trademarks of their respective owners. AAS-920-458B-03/2014